Think harder.
Rank higher.
Hand-picked puzzles for people who like thinking hard. A new daily in every category, 1v1 ranked matches, and a rating that actually means something. No ads, no guilt mechanics, no noise.
Puzzle groups
All games →SudokuRanked
Play ranked →LogicRanked
Play ranked →Realm
Place queens across colored regions. Quick rounds, deep logic.
Trail
Trace a path through every cell, in order. No crossings.
Binairo
Fill the grid with O and X — balanced lines, never three in a row.
Hitori
Shade the duplicates — no repeats, no touching, all connected.
Light Up
Place bulbs to light every cell — and no bulb lights another.
Kakuro
Cross-sums — fill each run with distinct digits that hit its clue.
Nonogram
Fill cells from the number clues to reveal a hidden picture.
Patches
Fill the grid with rectangles — size clues constrain each piece.
NumberRanked
Play ranked →Mathler
Find the hidden calculation that hits the target.
Sumplete
Delete numbers until every row and column hits its target sum.
Calcudoku
Fill 1–N with no repeats — cages must hit their arithmetic targets.
Numberle
Guess the 5-digit number in six tries — green, yellow, gray.
Pips
Place dominoes so every region's constraint is met.
SumSlide
Split the row into segments that hit the target sums.
WordRanked
Play ranked →Curated
Solo · unrankedHand-made puzzles we publish when they’re worth your time — no ratings, no clock, just the puzzle.
A rating that
means something.
Every match counts. A Glicko-2 rating per category tracks where you stand, with 1v1 games against players near your level.
Real ratings
A Glicko-2 rating per group. Compete 1v1 and watch it move.
Groups of games
Sudoku, Logic, Number & Word — daily puzzles + ranked 1v1, with unique solutions.
No noise
No ads. No guilt mechanics. Just the puzzle.